EP2216142B1 - Marteau à air comprimé manuel doté d'un amortissement de vibrations commutable - Google Patents

Marteau à air comprimé manuel doté d'un amortissement de vibrations commutable Download PDF

Info

Publication number
EP2216142B1
EP2216142B1 EP09450206A EP09450206A EP2216142B1 EP 2216142 B1 EP2216142 B1 EP 2216142B1 EP 09450206 A EP09450206 A EP 09450206A EP 09450206 A EP09450206 A EP 09450206A EP 2216142 B1 EP2216142 B1 EP 2216142B1
Authority
EP
European Patent Office
Prior art keywords
handle body
working cylinder
hammer
body part
manually operated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09450206A
Other languages
German (de)
English (en)
Other versions
EP2216142A3 (fr
EP2216142A2 (fr
Inventor
Karl Meisenbichler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBG Baugeraete GmbH
Original Assignee
BBG Baugeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BBG Baugeraete GmbH filed Critical BBG Baugeraete GmbH
Priority to SI200930059T priority Critical patent/SI2216142T1/sl
Publication of EP2216142A2 publication Critical patent/EP2216142A2/fr
Publication of EP2216142A3 publication Critical patent/EP2216142A3/fr
Application granted granted Critical
Publication of EP2216142B1 publication Critical patent/EP2216142B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force
    • B25D17/245—Damping the reaction force using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/04—Handles; Handle mountings
    • B25D17/046—Sleeve-like handles surrounding the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/005—Adjustable tool components; Adjustable parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/255—Switches

Definitions

  • the invention relates to a hand-held pneumatic hammer with vibration damping, consisting essentially of a handle body part and a run in this working cylinder with a percussion piston.
  • Pneumatic impactors as used in pneumatic hammers, are state of the art.
  • the hammers may be formed for guidance by an operator depending on the size and embodiment with side handles or a fist grip.
  • From the AT 501 861 A1 is a hand-guided, vibration damped pneumatic hammer known in which the handle body and the working cylinder in the longitudinal axis of the hammer out relative to each other are displaced and by means of these parts at least one ventilatable or compressed air acted upon damping chamber is formed by a displacement of the working cylinder in the handle body of a Middle position in interaction of components of these parts in the region of the damping chamber in each case a closed cavity or compression space is formed with a reducible by a further rectified displacement volume.
  • Such an effective vibration damping can be achieved in a favorable manner in each of the two axial directions, ie in the direction of impact and retraction of the hammer, however, a rigid connection of handle body and cylinder of the hammer is optionally desired for a particularly accurate leading drive.
  • the invention is an object of the invention to overcome the disadvantages of the generic state of the art and to provide a hand-held pneumatic hammer with switchable vibration damping, in which the (the) handle (s) is rigidly connected to the handle body part (are) and by a simple Means a vibration damping of the hammer is switchable.
  • the advantages achieved by the invention are essentially to be seen in that in a simple manner by means of slight displacement of an actuating device, eg. a pushbutton, the switching means can be provided. Furthermore, advantageously, the holding part for the pneumatic hammer remains geometrically unchanged, or rigid, which leaves a hammer guide with switched vibration damping for the operator without modification, whereby improved accuracy of the intended fracture effect is achieved.
  • an actuating device eg. a pushbutton
  • the switching means is integrated in the handle body.
  • This embodiment of the integrated switching means is also favorable in terms of manufacturing technology and operational reliability.
  • a reference list is intended to facilitate the assignment of the functional means and parts in the representations.
  • Fig. 1 and Fig. 2 schematically show a pneumatic hammer according to the invention with a handle body part 1 and a working cylinder 2 with a percussion piston.
  • a working cylinder 2 is arranged in a handle body part 1 of a pneumatic hammer according to the invention, which is limitedly movable in the longitudinal direction.
  • a damping chamber 6 is formed by a recess 11.
  • a movable in the handle body part 1 working cylinder 2 has spaced from its end portion 23 a region 24 with an enlarged diameter in the hammering direction in the damping chamber 6, through which in this a damping surface 21 and in the opposite direction outside of the damping chamber 6, a stop 22 are formed to the handle body part 21 out ,
  • a switching means 5, which is preferably integrated in the handle body part 1, has a switching part 51, by means of which on the one hand via a switching air inlet 15 and a bore 14, a sliding space 4 between handle body part 1 and end portion 23 from the working cylinder 2 with compressed air D can be supplied.
  • a changeover from the switching part 51 causes a completion of the switching air inlet and a free connection of the displacement chamber 4 to the ambient air U.
  • a sliding chamber 4 between the end portion 23 of the working cylinder 2 and a handle body part 1 is, as Fig. 1 shows, connected via a bore 14 and by a position of a switching member 51 in the switching means 5 with the ambient air U.
  • Fig. 2 now shows an adjustment of a pneumatic hammer according to the invention, as this is preferred for highly accurate propulsion and impact work.
  • the switching part 51 from the switching means 5 causes immediately after activation of the hammer a compressed air supply D via the switching air inlet 15 and a bore 14 in a sliding space 4.
  • a pressure force caused thereby on the end portion 23 of the working cylinder fixed this with the stopper 22 on the stop surface 12 of the handle body 1.
  • Even with harder punches on the cylinder 2 is an immovable positioning of the same on the stop surface 22 to the stop surface 12 from the handle body part 1 and such a desired rigid connection between the parts.
  • a light vibration damping of a hand-operated pneumatic hammer of the type according to the invention which can be switched directly in operation, on the one hand represents a health-promoting equipment for an operator and on the other hand is an effective precision instrument for targeted advances and breaking operations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (2)

  1. Marteau à air comprimé manuel doté d'un amortissement de vibrations commutable, qui consiste sensiblement d'une partie de corps de poignée (1) et d'un cylindre de travail (2) guidé de manière déplaçable dans celui-ci avec un piston frappeur (3), dans lequel une chambre d'amortissement (6), chargeable par air comprimé, étant formée entre la partie de corps de poignée (1) et le cylindre de travail (2), dans laquelle le cylindre de travail (2), en direction d'impact du piston (3), comprend un diamètre augmenté et, ainsi, une section transversale annulaire ayant une surface d'amortissement (21), caractérisé en ce, qu'un espace de déplacement est formé sensiblement sur la face vers la direction d'impact du piston entre le cylindre de travail (2) et la partie de corps de poignée (1), ledit espace de déplacement (4) étant capable d'être à être chargé par air comprimé (D) ou à être connecté sélectivement par un moyen de commutation (5) avec l'air d'ambiance (U).
  2. Marteau à air comprimé selon la revendication 1, caractérisé en ce, que le moyen de commutation (5) est intégré dans le corps de poignée (1).
EP09450206A 2008-11-20 2009-10-29 Marteau à air comprimé manuel doté d'un amortissement de vibrations commutable Not-in-force EP2216142B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200930059T SI2216142T1 (sl) 2008-11-20 2009-10-29 Ročno pnevmatsko kladivo z nastavljivim dušenjem vibracij

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0181308A AT507210B1 (de) 2008-11-20 2008-11-20 Handgeführter drucklufthammer mit schaltbarer vibrationsdämpfung

Publications (3)

Publication Number Publication Date
EP2216142A2 EP2216142A2 (fr) 2010-08-11
EP2216142A3 EP2216142A3 (fr) 2010-10-20
EP2216142B1 true EP2216142B1 (fr) 2011-08-10

Family

ID=41667471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09450206A Not-in-force EP2216142B1 (fr) 2008-11-20 2009-10-29 Marteau à air comprimé manuel doté d'un amortissement de vibrations commutable

Country Status (6)

Country Link
EP (1) EP2216142B1 (fr)
AT (2) AT507210B1 (fr)
ES (1) ES2370467T3 (fr)
HR (1) HRP20110765T1 (fr)
PT (1) PT2216142E (fr)
SI (1) SI2216142T1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111716298B (zh) * 2020-06-28 2021-07-23 山东沂蒙工具有限公司 一种能够利用反冲力震荡除锈锤

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596681B1 (fr) * 1986-04-03 1988-06-10 Eimco Secoma Appareil de percussion hydraulique avec dispositif d'amortissement des ondes de choc en retour
AT8378U1 (de) 2005-01-14 2006-07-15 Bbg Baugeraete Gmbh & Co Kg Handgeführter druckluft-abbruchhammer
AT501861B1 (de) * 2005-05-25 2009-08-15 Bbg Baugeraete Gmbh Handgeführter, vibrationsgedämpfter drucklufthammer

Also Published As

Publication number Publication date
HRP20110765T1 (hr) 2011-11-30
AT507210A4 (de) 2010-03-15
AT507210B1 (de) 2010-03-15
EP2216142A3 (fr) 2010-10-20
EP2216142A2 (fr) 2010-08-11
PT2216142E (pt) 2011-09-05
SI2216142T1 (sl) 2011-10-28
ES2370467T3 (es) 2011-12-16
ATE519569T1 (de) 2011-08-15

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